CNC live threading

M

mcconecue

Registered
I am still trying to learn some things on my Cnc. Still a newb with CNC.

I'm using Mach3. I'm looking for any info on moving to threading on my diy CNC machine.

It is a 4 axis machine. I can remove inlay spindle and use my pc router for threading.

Are there some sources for learning or can someone provide some info on setup and programming. Is anyone using canned threading program in Mach?

Also looking for a good source for Thread Mills.

Any info is greatly appreciated.

Thanks

Dan
 
threading

mcconecue said:
I am still trying to learn some things on my Cnc. Still a newb with CNC.

I'm using Mach3. I'm looking for any info on moving to threading on my diy CNC machine.

It is a 4 axis machine. I can remove inlay spindle and use my pc router for threading.

Are there some sources for learning or can someone provide some info on setup and programming. Is anyone using canned threading program in Mach?

Also looking for a good source for Thread Mills.

Any info is greatly appreciated.

Thanks

Dan
Click to expand...

Hey Dan,

You might want to ask your questions in the "ASK THE CUEMAKER" section. Maybe this link might help you a little >>>>>>>>>
http://forums.azbilliards.com/showthread.php?t=213681

Kenny
 
I KNOW of one cuemaker that has a cnc lathe set up for threading. It is a full size machine lathe and I believe he uses it just for threading and finishing OD on joints.

I believe your cnc wouldn't be practical, as the threader has to be parallel to the workpiece.

His setup:

1. center drills
2. bores
3. taps
4. cleans threads with boring bar
5. finishes od of shaft or butt joints

Can't remember if it faces, but I believe so....

He also uses it thread his handles..Actually I believe he uses it for all his threading... Would make sense, as the investment was pretty considerable. It is a Jet, but I don't know much more than that. All the tools are on a "chunk" of aluminum on the saddle...
 
pescadoman said:
I believe your cnc wouldn't be practical, as the threader has to be parallel to the workpiece.
Click to expand...

Sorry Pescadoman, I don't believe this to be true. You should be able to take any 60 degree cutter and live thread. As long as the tool is perpendicular to the work piece it should work fine. The hard part would be holding the work piece. Alot of A axis are sherline and have no through hole so a steady rest would be needed. You are correct that the lathe is the easiest and fastes setup. By the way, I should point out that I can rotate my spindle on my cnc 90 degrees to use a traditional threadmill.


Jim.:wink:
 
My CNC's 4th axis is a custom built 5C collet indexer setup , special built cog pulleys and belt and i can run a 2 to 1 or a 3 to 1 drive ratio just by changing pulley, powered by a Nema 34. So power should not be a problem.

I haven't tried it yet, But I believe with custom collets I should be able to fit most parts thru , possibly full Butt dia.

And after I remove my inlay spindle I can mount my router horizontal or vertical,
I think it should work.

Jim I assume I have to adjust my g-code to meet my drive ratio for threading?

Dan
 
Dan,

Your G code should always represent the actual movements you want. It should not change based on the drive setup you have on your indexer.

However, you should change the steps per unit in Mach3 if you change the indexer gearing.

What I would do is make a new profile for each setting so you just have to choose the right one when you load.


The question does come up though, why would you need to change the gearing. I don't think the difference between 2 to 1 and 3 to 1 would make any difference in being able to do rotational indexing for pocketing, or accurate turning for threading.
 
Mc2 said:
Sorry Pescadoman, I don't believe this to be true. You should be able to take any 60 degree cutter and live thread. As long as the tool is perpendicular to the work piece it should work fine. The hard part would be holding the work piece. Alot of A axis are sherline and have no through hole so a steady rest would be needed. You are correct that the lathe is the easiest and fastes setup. By the way, I should point out that I can rotate my spindle on my cnc 90 degrees to use a traditional threadmill.


Jim.:wink:
Click to expand...

I think we are on the same page, I just failed to explain myself properly. I'll leave it to the pros.
 
mcconecue said:
Yeah I don't change the gears. It was just the mad workings of the guy who built it for me ,as an option.
Click to expand...

I believe in your first post you told us that this is a diy machine. I think I know mad guy is here.

LOL. JIm.
 
pescadoman said:
I think we are on the same page, I just failed to explain myself properly. I'll leave it to the pros.
Click to expand...

Pescadoman, I would have agreed with you 6 months ago whoever, I know someone that does it vertical and it works great. I don't see a reson that it shouldn't work. It just may not be as clean however glue will fix that. LOL.

Jim.
 
You must log in or register to reply here.
Back
Top